Bump theme

readthedocs/templates/sphinx/sphinx_rtd_theme/footer.html

@@ -2,10 +2,10 @@
   {% if next or prev %}
     <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
       {% if next %}
-        <a href="{{ next.link|e }}" class="btn btn-neutral float-right" title="{{ next.title|striptags|e }}"/>Next <span class="fa fa-circle-arrow-right"></span></a>
+        <a href="{{ next.link|e }}" class="btn btn-neutral float-right" title="{{ next.title|striptags|e }}"/>Next <span class="fa fa-arrow-circle-right"></span></a>
       {% endif %}
       {% if prev %}
-        <a href="{{ prev.link|e }}" class="btn btn-neutral" title="{{ prev.title|striptags|e }}"><span class="fa fa-circle-arrow-left"></span> Previous</a>
+        <a href="{{ prev.link|e }}" class="btn btn-neutral" title="{{ prev.title|striptags|e }}"><span class="fa fa-arrow-circle-left"></span> Previous</a>
       {% endif %}
     </div>
   {% endif %}